45454547 has 2 divisors, whose sum is σ = 45454548. Its totient is φ = 45454546.

The previous prime is 45454543. The next prime is 45454567. The reversal of 45454547 is 74545454.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45454547 - 2² = 45454543 is a prime.

It is a super-2 number, since 2×45454547² = 4132231685950418, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 45454547.

It is not a weakly prime, because it can be changed into another prime (45454543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22727273 + 22727274.

It is an arithmetic number, because the mean of its divisors is an integer number (22727274).

Almost surely, 2^45454547 is an apocalyptic number.

45454547 is a deficient number, since it is larger than the sum of its proper divisors (1).

45454547 is an equidigital number, since it uses as much as digits as its factorization.

45454547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224000, while the sum is 38.

The square root of 45454547 is about 6741.9987392464. The cubic root of 45454547 is about 356.8829317965.

The spelling of 45454547 in words is "forty-five million, four hundred fifty-four thousand, five hundred forty-seven".